NCERT Solutions for Class 9 Maths Chapter 2
Important NCERT Questions
Polynomials
NCERT Books for Session 2022-2023
CBSE Board and UP Board Others state Board
EXERCISE 2.5
Page No:48
Questions No:1 part:4
Use suitable identities to find the following products: (y²+3/2) (y²-3/2)
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(iv) (y² + 3/2)(y² – 3/2)
= (y²)² – (3/2)² [∵ (a + b)(a – b) = a² – b²]
= y⁴ – 9/4